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  <a name="ZH-CN_TOPIC_0000001839210537"></a><a name="ZH-CN_TOPIC_0000001839210537"></a>
  <h1 class="topictitle1">步骤1：开启TDSQL数据库权限</h1>
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   <p>TDSQL在执行备份任务前，需开启对应版本权限，否则会导致备份或恢复失败。</p>
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    <h4 class="sectiontitle">操作步骤</h4>
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     <li id="ZH-CN_TOPIC_0000001839210537__li77041336572"><a name="ZH-CN_TOPIC_0000001839210537__li77041336572"></a><a name="li77041336572"></a><span>登录赤兔管理台界面，在“实例管理”中选择实例，并进入“数据库管理 &gt; 用户管理 &gt; 创建用户”界面，创建供备份时使用的用户。</span></li>
     <li><span>使用管理员用户（例如：<strong>tdsqlsys_agent</strong>），登录TDSQL数据库。</span></li>
     <li><span>执行以下命令查找主节点。回显信息中包含“Empty”的节点，则为主节点。</span><p></p><p><strong>show slave status</strong></p> <p><span><img src="zh-cn_image_0000001839210617.png"></span></p> <p></p></li>
     <li><span>登录到主节点，执行以下命令为用户开启相应版本权限。</span><p></p><p><strong>GRANT BACKUP_ADMIN, PROCESS, RELOAD, SELECT, LOCK TABLES, SUPER ON *.* TO '</strong><em><a href="#ZH-CN_TOPIC_0000001839210537__li77041336572">1</a>中创建的用户名</em><strong>'@%</strong><strong>';</strong></p> <p></p></li>
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     <strong>父主题：</strong> <a href="zh-cn_topic_0000001839290513.html">备份TDSQL数据库</a>
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